What is the benefit of larger wheels on a car?
1. Improved Grip and Traction
Usually, the large and wide tyres have more rubber on their track. This simply indicates that the car’s tyres can make a better contact with the road, thus offering better grip and traction. In other words, it allows the better car handling.
2. Improved Cornering
Bigger alloy wheels result in more road-contact, wider thread, and stiffer sidewalls. And, with all these attributes, large size wheels directly contribute to better cornering and handling.
3. Better Braking
As discussed earlier, cars on big rim have more contact patch and grip on the road. So, if you install large-size balanced tyres (in simple words, not too hard or too soft tyres) in cars, these will surely give a fair performance by reducing the braking distance.
4. Better Appearance
Replacing the factory wheels & tyres with wider aftermarket alloys can fill in the gap from wheel to guard give you the sportier look with low profile tyres.
Disadvantages Of Bigger Wheels?
1. Increased Fuel Consumption
Bigger wheels have more weight, which results in engine working harder than the usual. As a result, the fuel consumption also increases. You can offset this increase by purchasing “flowform” alloys, these lightweight alloys cost a bit more than normal alloy wheels but are an incredibly strong and lightweight option which can increase fuel efficiency.
2. Quick Tyre Wear
Due to the heavy steering, wheel scraping, and lower sidewalls, the large size tyres wear out faster than smaller higher profile tyres.
3. Error In Speedometer
A car’s technology is calibrated according to the standard components or parts installed in it. However, during the enhancement of car components, this embedded technology may not respond accurately. For instance, the car wheels upgrading from 16 inches to 19-inches will give an error in speedometer reading. We carefully calculate the fitment with the closest possible rolling diameter to original, this usually means the speedo is not out more than 3%.
4. Sensor Valves
Some newer model vehicles have TPMS tyre valves, the sensors for this are in the factory wheels and need to be transplanted to the new wheel or replaced with new sensors, this is a more labour intensive and expensive process as it must be completed in a workshop, the wheels cannot just be sent out and put on the vehicle.
“A sensor valve in each tyre monitors tyre pressures and reports low pressures or tyre pressure imbalances to the driver via the dashboard display. TPMS sensors in the vehicle show a warning light when there is a drop in pressure of between 6-7PSI.”